This is important, whether it is a physical signature or the use of electronic signatures. A notary is a state-approved official who authorizes the identity of each signatory and witnesses the execution of a document. A notary also takes an oath, certifies copies of documents and provides acknowledgments of receipt. Whether a document requires notarization (the process of signing its document by a notary) depends on state law and the regulations of financial institutions. When you sign a contract, best practices recommend that you use a color other than the color of the contract terms to reinforce authenticity and prevent someone from making fraudulent copies of the contract. Blue is the norm. Do not use a pencil because someone could handle it and avoid red ink as it can be difficult to read. This may sound basic (and it is!), but you`d be surprised how often it goes through the hustle and bustle of business. .